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arXiv 1111.3967hep-thmath.AG
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局部半K3曲面的拓扑弦振幅

Topological string amplitudes for the local half K3 surface

Kazuhiro Sakai

摘要:

我们研究局部半K3曲面的拓扑弦振幅。我们发展了一种计算高阶亏格振幅的方法,该方法充分利用了用模形式和E_8不变Jacobi形式表示的Seiberg-Witten曲线。塞伯格-威滕曲线是以前为非临界E-弦论的低能有效理论在R^4 × T^2中构造的。我们澄清如何振幅被写入多项式在有限数量的发电机表示的赛伯格-威滕曲线。我们通过求解全纯反常方程和间隙条件来确定多项式的系数,并明确地构造了亏格为3的振幅。结果包括拓扑弦振幅的所有本地del Pezzo表面。

英文摘要:

We study topological string amplitudes for the local half K3 surface. We develop a method of computing higher-genus amplitudes along the lines of the direct integration formalism, making full use of the Seiberg-Witten curve expressed in terms of modular forms and E_8-invariant Jacobi forms. The Seiberg-Witten curve was constructed previously for the low-energy effective theory of the non-critical E-string theory in R^4 x T^2. We clarify how the amplitudes are written as polynomials in a finite number of generators expressed in terms of the Seiberg-Witten curve. We determine the coefficients of the polynomials by solving the holomorphic anomaly equation and the gap condition, and construct the amplitudes explicitly up to genus three. The results encompass topological string amplitudes for all local del Pezzo surfaces.

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